- 07 Jul, 2020 3 commits
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Xu Wang authored
usb_free_coherent() is safe with NULL addr and this check is not required. Signed-off-by:
Xu Wang <vulab@iscas.ac.cn> Link: https://lore.kernel.org/r/20200707030905.3123-1-vulab@iscas.ac.cnSigned-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Sebastian Reichel authored
Switch to the "new" I2C probe API. Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.com> Reviewed-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Link: https://lore.kernel.org/r/20200520153936.46869-3-sebastian.reichel@collabora.comSigned-off-by:
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Colin Ian King authored
The variable error is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by:Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20200603140431.131347-1-colin.king@canonical.comSigned-off-by:
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- 18 May, 2020 7 commits
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Jeff LaBundy authored
If CONFIG_INPUT_IQS269A is selected yet CONFIG_I2C is not, the build fails. To solve this problem, add I2C as a dependency. Signed-off-by:
Jeff LaBundy <jeff@labundy.com> Reported-by:
kbuild test robot <lkp@intel.com> Fixes: 04e49867 ("Input: add support for Azoteq IQS269A") Link: https://lore.kernel.org/r/1589809466-22748-1-git-send-email-jeff@labundy.comSigned-off-by:
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Michał Mirosław authored
Apply some DRY-ing to elants_i2c_execute_command() callers. This pulls polling and error printk()s into a single function. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lore.kernel.org/r/6c576f688b385235c65b461410a917080d27e825.1587923061.git.mirq-linux@rere.qmqm.plSigned-off-by:
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Michał Mirosław authored
Allow overriding of information from hardware and support additional common DT properties like axis inversion. This is required for eg. Nexus 7 and TF300T where the programmed values in firmware differ from reality. Signed-off-by:
Dmitry Osipenko <digetx@gmail.com> [moved "prop" before DMA buffer] Signed-off-by:
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Michał Mirosław authored
Driver only ever reports MT events and input_mt_init_slots() sets up emulated axes already. Clear the capabilities not generated directly and move MT axes setup, so they are visible by input_mt_init_slots(). Signed-off-by:
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Dmitry Torokhov authored
Merge for-linus branch to sync Elan touchscreen driver code.
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Jeff LaBundy authored
This patch adds support for the Azoteq IQS269A capacitive touch controller. Signed-off-by:
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Jeff LaBundy authored
This patch adds device tree bindings for the Azoteq IQS269A capacitive touch controller. Signed-off-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/1588352982-5117-1-git-send-email-jeff@labundy.comSigned-off-by:
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- 13 May, 2020 3 commits
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Anson Huang authored
Use devm_add_action_or_reset() to handle all cleanups of failure in .probe and .remove, then .remove callback can be dropped. Signed-off-by:
Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1584082751-17047-1-git-send-email-Anson.Huang@nxp.comSigned-off-by:
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Brian Masney authored
The address referenced by this driver is within the Qualcomm Clock namespace so let's drop the msm-vibrator bindings so that a more generic solution can be used instead. No one is currently using driver so this won't affect any users. Signed-off-by:
Brian Masney <masneyb@onstation.org> Link: https://lore.kernel.org/r/20200513013140.69935-3-masneyb@onstation.orgSigned-off-by:
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Brian Masney authored
The address referenced in this binding is within the Qualcomm Clock namespace so let's drop the msm-vibrator bindings so that a more generic solution can be used instead. No one is currently using these bindings so this won't affect any users. Signed-off-by:
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- 12 May, 2020 4 commits
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Johnny Chuang authored
There is an non-touch case by non-calibration after update firmware. Elan could know calibrate or not by calibration count. The value of '0xffff' means we didn't calibrate after update firmware. If calibrate success, it will plus one and change to '0x0000'. Signed-off-by:
Johnny Chuang <johnny.chuang@emc.com.tw> Link: https://lore.kernel.org/r/1588754932-5902-1-git-send-email-johnny.chuang.emc@gmail.comSigned-off-by:
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Jiada Wang authored
input_mt_report_slot_state() ignores "tool" argument when the slot is closed, which has caused a bit of confusion. Let's introduce input_mt_report_slot_inactive() to report inactive slot state. Suggested-by:
Jiada Wang <jiada_wang@mentor.com> Link: https://lore.kernel.org/r/20200508055656.96389-2-jiada_wang@mentor.comSigned-off-by:
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David Heidelberg authored
Convert elants_i2c.txt DT binding to YAML and put into correct directory. Reviewed-by:
David Heidelberg <david@ixit.cz> Reviewed-by:
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Dmitry Torokhov authored
Sync up with mainline to get device tree and other changes.
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- 10 May, 2020 3 commits
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Linus Walleij authored
This adds a new driver for the Cypress CY8CTMA140 touchscreen. This driver is inspired by out-of-tree code for the Samsung GT-S7710 mobile phone. I have tried to compare the structure and behaviour of this touchscreen to the existing CYTTSP and CYTTSP4 generics and it seems pretty different. It is also different in character from the cy8ctmg110_ts.c. It appears to rather be vaguely related to the Melfas MMS114 driver, yet distinctly different. Dmitry Torokhov rewrote the key scanning code during the submission process so the driver is a joint work. Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200506123435.187432-2-linus.walleij@linaro.orgSigned-off-by:
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Linus Walleij authored
This adds device tree bindings for the Cypress CY8CTMA140 touchscreen. Reviewed-by:
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Gustavo A. R. Silva authored
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] sizeof(flexible-array-member) triggers a warning because flexible array members have incomplete type[1]. There are some instances of code in which the sizeof operator is being incorrectly/erroneously applied to zero-length arrays and the result is zero. Such instances may be hiding some bugs. So, this work (flexible-array member conversions) will also help to get completely rid of those sorts of issues. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732 ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by:Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200507185347.GA14499@embeddedorSigned-off-by:
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- 09 May, 2020 4 commits
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Ahmad Fatoum authored
Probing the device takes a while, because we sleep for 300 ms after a reset; allow asynchronous probing so this can happen in the background while other devices are being probed. Signed-off-by:
Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by:
Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.kernel.org/r/20200227112819.16754-5-m.felsch@pengutronix.deSigned-off-by:
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Marco Felsch authored
It is possible to bring the device into a deep sleep state. To exit this state the reset or wakeup pin must be toggeled as documented in [1]. Because of the poor documentation I used the several downstream kernels [2] and other applications notes [3] to indentify the related registers. Furthermore I added the support to disable the device completely which is obviously the most effective power-saving mechanism. This mechanism needs the reset pin to ensure the power-up/down sequence. We can't apply any of these power-saving mechanism if both pins are missing (not connected) or if it is a wakeup device. [1] https://www.newhavendisplay.com/appnotes/datasheets/touchpanel/FT5x26.pdf https://www.newhavendisplay.com/appnotes/datasheets/touchpanel/FT5x06.pdf [2] https://github.com/linux-sunxi/linux-sunxi/blob/sunxi-3.4/drivers/input/touchscreen/ft5x_ts.c https://github.com/Pablito2020/focaltech-touch-driver/blob/master/ft5336_driver.c [3] https://www.newhavendisplay.com/appnotes/datasheets/touchpanel/FT5x16_registers.pdfSigned-off-by:
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Marco Felsch authored
We need to restore the parameters if we switch between the factory/work mode and during the resume process if we switched off the power-supply. Therefore refactor edt_ft5x06_work_mode() and move the "restore the parameters" into a helper routine so we can reuse it later. Signed-off-by:
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Marco Felsch authored
Since commit b6eba860 ("Input: edt-ft5x06 - add offset support for ev-ft5726") offset-x and offset-y is supported. Devices using those offset parameters don't support the offset parameter so we need to add the NO_REGISTER check for edt_ft5x06_ts_get_defaults(). Fixes: b6eba860 ("Input: edt-ft5x06 - add offset support for ev-ft5726") Signed-off-by:
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- 06 May, 2020 2 commits
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Hans de Goede authored
On some X86 devices we do not register an input-device, because the power-button is also handled by the soc_button_array (GPIO) input driver, and we want to avoid reporting power-button presses to userspace twice. Sofar when we did this we also did not register our interrupt handlers, since those were only necessary to report input events. But on at least 2 device models the Medion Akoya E1239T and the GPD win, the GPIO pin used by the soc_button_array driver for the power-button cannot wakeup the system from suspend. Why this does not work is not clear, I've tried comparing the value of all relevant registers on the Cherry Trail SoC, with those from models where this does work. I've checked: PMC registers: FUNC_DIS, FUNC_DIS2, SOIX_WAKE_EN, D3_STS_0, D3_STS_1, D3_STDBY_STS_0, D3_STDBY_STS_1; PMC ACPI I/O regs: PM1_STS_EN, GPE0a_EN and they all have identical contents in the working and non working cases. I suspect that the firmware either sets some unknown register to a value causing this, or that it turns off a power-plane which is necessary for GPIO wakeups to work during suspend. What does work on the Medion Akoya E1239T is letting the AXP288 wakeup the system on a power-button press (the GPD win has a different PMIC). Move the registering of the power-button press/release interrupt-handler from axp20x_pek_probe_input_device() to axp20x_pek_probe() so that the PMIC will wakeup the system on a power-button press, even if we do not register an input device. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Acked-by:
Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20200426155757.297087-1-hdegoede@redhat.comSigned-off-by:
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Wolfram Sang authored
The 'pengutronix' address is defunct for years. Use the proper contact address. Signed-off-by:
Wolfram Sang <wsa@kernel.org> Link: https://lore.kernel.org/r/20200502142639.18925-1-wsa@kernel.orgSigned-off-by:
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- 28 Apr, 2020 7 commits
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Wei Yongjun authored
Fix to return a negative error code from the input_register_device() error handling case instead of 0, as done elsewhere in this function. Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20200428134948.78343-1-weiyongjun1@huawei.com Cc: stable@vger.kernel.org Signed-off-by:
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Evan Green authored
Fix a use-after-free noticed by running with KASAN enabled. If rmi_irq_fn() is run twice in a row, then rmi_f11_attention() (among others) will end up reading from drvdata->attn_data.data, which was freed and left dangling in rmi_irq_fn(). Commit 55edde9f ("Input: synaptics-rmi4 - prevent UAF reported by KASAN") correctly identified and analyzed this bug. However the attempted fix only NULLed out a local variable, missing the fact that drvdata->attn_data is a struct, not a pointer. NULL out the correct pointer in the driver data to prevent the attention functions from copying from it. Fixes: 55edde9f ("Input: synaptics-rmi4 - prevent UAF reported by KASAN") Fixes: b908d3cd ("Input: synaptics-rmi4 - allow to add attention data") Signed-off-by:
Evan Green <evgreen@chromium.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200427145537.1.Ic8f898e0147beeee2c005ee7b20f1aebdef1e7eb@changeidSigned-off-by:
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Kevin Locke authored
On the Lenovo ThinkPad Twist S230u (3347-4HU) with BIOS version "GDETC1WW (1.81 ) 06/27/2019", the keyboard, Synaptics TouchPad, and TrackPoint either do not function or stop functioning a few minutes after boot. This problem has been noted before, perhaps only occurring with BIOS 1.57 and later.[1][2][3][4][5] Odds of a BIOS fix appear to be low: 1.57 was released over 6 years ago and although the [BIOS changelog] notes "Fixed an issue of UEFI touchpad/trackpoint/keyboard/touchscreen" in 1.58, it appears to be insufficient. Setting i8042.reset=1 or adding 33474HU to the reset list avoids the issue on my system from either warm or cold boot. [1]: https://bugs.launchpad.net/bugs/1210748 [2]: https://bbs.archlinux.org/viewtopic.php?pid=1360425 [3]: https://forums.linuxmint.com/viewtopic.php?f=46&t=41200 [4]: https://forums.linuxmint.com/viewtopic.php?f=49&t=157115 [5]: https://forums.lenovo.com/topic/findpost/27/1337119 [BIOS changelog]: https://download.lenovo.com/pccbbs/mobiles/gduj33uc.txtSigned-off-by:
Kevin Locke <kevin@kevinlocke.name> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/94f384b0f75f90f71425d7dce7ac82c59ddb87a8.1587702636.git.kevin@kevinlocke.nameSigned-off-by:
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Dmitry Torokhov authored
This reverts commit 18931506. From Kevin Locke: "... nomux only appeared to fix the issue because the controller continued working after warm reboots. After more thorough testing from both warm and cold start, I now believe the entry should be added to i8042_dmi_reset_table rather than i8042_dmi_nomux_table as i8042.reset=1 alone is sufficient to avoid the issue from both states while i8042.nomux is not."
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Rajat Jain authored
Allow the firmware to specify the mapping between the scan code and the linux keycode. This takes the form of a "linux,keymap" property which is an array of u32 values, each value specifying mapping for a key. Signed-off-by:
Rajat Jain <rajatja@google.com> Link: https://lore.kernel.org/r/20200427210259.91330-3-rajatja@google.comSigned-off-by:
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Rajat Jain authored
Certain keyboards have their top-row keys intended for actions such as "Browser back", "Browser Refresh", "Fullscreen" etc as their primary mode, thus they will send scan codes for those actions. Further, they don't have a dedicated "Fn" key so don't have the capability to generate function key codes (e.g. F1, F2 etc..). However in this case, if userspace still wants to "synthesize" those function keys using the top row action keys, it needs to know the physical position of the top row keys. (Essentially a mapping between usage codes and a physical location in the top row). This patch enhances the atkbd driver to receive such a mapping from the firmware / device tree, and expose it to userspace in the form of a function-row-physmap attribute. The attribute would be a space separated ordered list of physical codes, for the keys in the function row, in left-to-right order. The attribute will only be present if the kernel knows about such mapping, otherwise the attribute shall not be visible. Signed-off-by:
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Rajat Jain authored
Attach the firmware node to the serio i8042 kbd device so that device properties can be passed from the firmware. Signed-off-by:
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- 25 Apr, 2020 2 commits
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Stephan Gerhold authored
MMS345L is another first generation touch screen from Melfas, which uses mostly the same registers as MMS152. However, there is some garbage printed during initialization. Apparently MMS345L does not have the MMS152_COMPAT_GROUP register that is read+printed during initialization. TSP FW Rev: bootloader 0x6 / core 0x26 / config 0x26, Compat group: \x06 On earlier kernel versions the compat group was actually printed as an ASCII control character, seems like it gets escaped now. But we probably shouldn't print something from a random register. Add a separate "melfas,mms345l" compatible that avoids reading from the MMS152_COMPAT_GROUP register. This might also help in case there is some other device-specific quirk in the future. Signed-off-by:
Stephan Gerhold <stephan@gerhold.net> Reviewed-by:
Andi Shyti <andi@etezian.org> Link: https://lore.kernel.org/r/20200423102431.2715-1-stephan@gerhold.netSigned-off-by:
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Stephan Gerhold authored
The mms114 driver now supports MMS345L; document the melfas,mms345l binding that is used for it. Signed-off-by:
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- 22 Apr, 2020 3 commits
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Christophe JAILLET authored
According to the file name and Kconfig, a 'k' is missing in this driver name. It should be "dlink-dir685-touchkeys". Fixes: 131b3de7 ("Input: add D-Link DIR-685 touchkeys driver") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by:
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Łukasz Patron authored
Sending [ 0x05, 0x20, 0x00, 0x0f, 0x06 ] packet for Xbox One S controllers fixes an issue where controller is stuck in Bluetooth mode and not sending any inputs. Signed-off-by:
Łukasz Patron <priv.luk@gmail.com> Reviewed-by:
Cameron Gutman <aicommander@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200422075206.18229-1-priv.luk@gmail.comSigned-off-by:
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Brendan Shanks authored
input_flush_device() should only be called once the struct file is being released and no open descriptors remain, but evdev_flush() was calling it whenever a file descriptor was closed. This caused uploaded force-feedback effects to be erased when a process did a dup()/close() on the event FD, called system(), etc. Call input_flush_device() from evdev_release() instead. Reported-by:
Mathieu Maret <mathieu.maret@gmail.com> Signed-off-by:
Brendan Shanks <bshanks@codeweavers.com> Link: https://lore.kernel.org/r/20200421231003.7935-1-bshanks@codeweavers.com Cc: stable@vger.kernel.org Signed-off-by:
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- 20 Apr, 2020 1 commit
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Kevin Locke authored
On the Lenovo ThinkPad Twist S230u (3347-4HU) with BIOS version "GDETC1WW (1.81 ) 06/27/2019", whether booted in UEFI or Legacy/CSM mode the keyboard, Synaptics TouchPad, and TrackPoint either do not function or stop functioning a few minutes after boot. This problem has been noted before, perhaps only occurring on BIOS 1.57 and later.[1][2][3][4][5] This model does not have an external PS/2 port, so mux does not appear to be useful. Odds of a BIOS fix appear to be low: 1.57 was released over 6 years ago and although the [BIOS changelog] notes "Fixed an issue of UEFI touchpad/trackpoint/keyboard/touchscreen" in 1.58, it appears to be insufficient. Adding 33474HU to the nomux list avoids the issue on my system. [1]: https://bugs.launchpad.net/bugs/1210748 [2]: https://bbs.archlinux.org/viewtopic.php?pid=1360425 [3]: https://forums.linuxmint.com/viewtopic.php?f=46&t=41200 [4]: https://forums.linuxmint.com/viewtopic.php?f=49&t=157115 [5]: https://forums.lenovo.com/topic/findpost/27/1337119 [BIOS changelog]: https://download.lenovo.com/pccbbs/mobiles/gduj33uc.txtSigned-off-by:
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- 19 Apr, 2020 1 commit
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Linus Walleij authored
There is now an IIO driver for GP2AP002A00F and GP2AP002S00F in drivers/iio/light/gp2ap002.c. Delete this driver, it is unused in the kernel tree and new users can make use of the IIO driver. Signed-off-by:
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